/*
 * $Id: PictureModel.java 189 2009-06-11 10:35:42Z meyer@alphatec.de $
 * 
 *
 * Copyright 2009 DeltaDesk
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package deltadesk.apps.pictureviewer.data;

import java.io.IOException;

/**
 * PictureModel
 * 
 * @author Andreas Meyer
 * @version $Revision: 189 $
 */
public interface PictureModel {
	
	/**
	 * Initialize the model.
	 * 
	 * @return
	 * @throws IOException
	 */
	public int init() throws IOException;
	
	/**
	 * Return the size of the model.
	 * 
	 * @return
	 */
	public int getSize();
	
	/**
	 * Return the picture for a given index.
	 * 
	 * @param index
	 * @return
	 */
	public Picture getPicture(int index) throws IOException;

}
